a) The valievof confidence coefficient can be found by Z statistic table shown below, now here alpha= 18 %and alpha/2 will be 9% hence
By table.
b) Here alpha is 1% hence alpha/2= 0.5% Now by Z table Confidence coefficient
Table below
+/-/9.09 points JKEStat11 8E022. Consider the following. (Round your answers to two decimal places.) (a) Determine...
Consider the following. (Round your answers to two decimal places.) (a) Determine the value of the confidence coefficient z(α/2) for 1 − α = 0.81. (b) Determine the value of the confidence coefficient z(α/2) for 1 − α = 0.93. You may need to use the appropriate table in Appendix B to answer this question.
Consider the following. (Round your answers to two decimal places.) (a) Determine the value of the confidence coefficient z(α/2) for 1 − α = 0.85. (b) Determine the value of the confidence coefficient z(α/2) for 1 − α = 0.93. You may need to use the appropriate table in Appendix B to answer this question.
8.0-9.09 points JKEStat11 8.Ε.094 Assume that z is the test statistic. (Give your answers correct to two decimal places.) (a) Calculate the value of Z for Ho, μ-51, σ 4.3, n-38, x 50.3. (b) Calculate the value of z for Ho: μ = 20, σ = 3.7, n = 78, x = 21.8. (c) Calculate the value of z for Ho: μ 138.5, σ 4.4, n 18, x-: 141.19 (d) Calculate the value of Z for Ho: μ 815, σ...
4. 0-9.09 points JKEStat11 8.E.025 The sampled population is normally distributed, with the given information. (Give your answers correct to two decimal places.) n 19, x 29.6, and ơ 6.8 (a) Find the 0.95 confidence interval for μ. (b) Are the assumptions satisfied? Explain. to O Yes, the sampled population is normally distributed. O No, the sample distribution is not normally distributed. O not enough information You may need to use the appropriate table in Appendix B to answer this...
Determine za for the following of a. (Round your answers to two decimal places.) a = 0.0054 (a) 2.55 a = 0.16 (b) 1.41 (c) a = 0.659 .44 You may need to use the appropriate table in the Appendix of Tables to answer this question. Need Help? Talk to a Tutor
5. -9.09 points JKEStat11 8 E 035 A machine produces parts with lengths that are normally distributed with ơ-0.62. A sample of 13 parts has a mean length of 76.33. (a) Give a point estimate for μ. (Give your answer correct to two decimal places.) (b Find the 95% confidence maximum error of estimate for p. (Give your answer correct to three decimal places.) (c) Find the 95% confidence interval for Lower Limit . (Give your answer correct to three...
Consider the following. (Round your answers to two decimal places.) (a) Determine the value of the confidence coefficient z(α/2) for 1 − α = 0.89. (b) Determine the value of the confidence coefficient z(α/2) for 1 − α = 0.94. Two hundred fish caught in Cayuga Lake had a mean length of 14.4 inches. The population standard deviation is 3.5 inches. (Give your answer correct to two decimal places.) (c) Find the 90% confidence interval for the population mean length....
1 0 -9.09 points JKEStat11 &E 016 Find the level of confidence assigned to an interval estimate of the mean formed using the following intervals. (Round your answers to four decimal places.) (a) x-1.07-oi to x + 1.07-o (b) x-1.68.叮to x + 1.68 (c) x-2.18-oǐ tox + 2.18 (d) x-2.62 to x + 2.62. You may need to use the appropriate table in Appendix B to answer this question. Need Help? Eman
Determine the confidence level for each of the following large-sample one-sided confidence bounds. (Round your answers to the nearest whole number.) (a) Upper bound: x + 1.28s/n (b) Lower bound: - 1.888/Vn (c) Upper bound: x + 0.845/vn You may need to use the appropriate table in the Appendix of Tables to answer this question. Need Help? Read It Watch It Talk to a Tutor -110 points V DEVORESTAT9 7.E.503.XP. My Notes Ask Your Teacher V An article gave the...
10. -10 points JKEStat11 7.E.048 Consider a normal population with the following. (Give your answers correct to two decimal places.) μ-24.6 and σ 4.8 (a) Calculate the z-score for an x of 21. (b) Calculate the z-score for an x of 21 from a sample of size 25. (c) Explain how 21 can have such different z-scores. O x and x belong to the same distribution O x and x belong to different distributions You may need to use the...